Investments in Partially Owned Entities (Fifth Avenue and Times Square JV) (Details) - Fifth Avenue and Times Square JV $ in Thousands	Sep. 30, 2026 USD ($)
Schedule Of Equity Method Investments
Equity method ownership percentage	51.50%
JV
Schedule Of Equity Method Investments
Aggregate of preferred equity interests	$ 1,079,000
Real estate basis difference, carrying amount	$ 696,893
JV \| Percentage Through April 2029
Schedule Of Equity Method Investments
Stated rate (in percent)	4.75%
JV \| Investors
Schedule Of Equity Method Investments
Equity method ownership percentage	48.50%
Equity method effective ownership percentage	47.20%
JV \| Vornado Realty Trust
Schedule Of Equity Method Investments
Equity method ownership percentage	51.50%
Equity method effective ownership percentage	51.00%

Contractual interest rate for funds borrowed, under the debt agreement.

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